Question

The binding of ligands to many GPCRs leads to ___________

(a) Decrease in concentration of certain intracellular signal molecules called second messengers

(b) Increase in concentration of certain intracellular signal molecules called second messengers

(c) Decrease in concentration of certain extracellular signal molecules called first messengers

(d) Increase in concentration of certain extracellular signal molecules called first messengers

I have been asked this question in an online quiz.

This interesting question is from G Protein in section Biosignalling of Biochemistry

Answer 1

Right option is (a) Decrease in concentration of certain intracellular signal molecules called second messengers

For explanation: The binding of ligands to many GPCRs leads to decrease in concentration of second messengers.